1.Resistant to ageing,staining and weathering. 2.use on wood,fibreboard,paper,plaster,concrete,masonry surfacea 3.factory sale Water-repellent ;water-proofing agent building waterproof agent specification A Detailed description This product is a new type of extremely easy dissolve building waterproof materials, has a waterproof, moistureproof, seepage control, permeability is strong, the anti- ...